Hi Dear ,
As per your query you have muscle spasms under chin and you have been to
dentist . Well there can be many reasons for symptom you mention in query like
bruxism , TMJ problem , stress and
anxiety ,
sore throat or muscle spasm . It seems to me that the symptoms you mention in query probably occur due to condition known as bruxism or clenching of teeth at night , which make the jaw muscle tight . bruxism can occu due to may reasons like TMJ problem ,
impacted tooth , stress and anxiety or misalignment of teeth . I would suggest you to do stretching exercises of neck and jaw muscles , apply warm compresses on jaw and neck muscles and try to make yourself relax . Consult oral surgeon for proper diagnosis . Doctor will examine the bite plane , order
CT scan or x-ray . Doctor mya prescribe
muscle relaxant , anti inflammatory , refer you to orthodontist for alignment of teeth or ENT specialits if he/she find problem to be related with sore throat . Doctor may also give you night guard and sedatives .
Hope your concern has been resolved.
Get Well Soon.
Best Wishes,
Dr. Harry Maheshwari